Karen Croxson recently joined the UK’s Competition and Markets Authority (CMA) in the role of Chief Data and Technology Insights Officer. She leads the CMA’s Data, Technology and Analytics (DaTA) unit, which comprises technologists, data scientists, data engineers, behavioural scientists, and experts in eDiscovery and digital forensics. Karen works across the CMA’s full portfolio providing oversight for digital cases, leading the CMA’s work on algorithms and online choice architecture, helping design the new digital regulation regime, and shaping the CMA’s internal transformation through digital, data, and AI. Her teams work on all major digital cases, investigating technology, analysing large-scale data, scrutinising algorithms including AI/foundation models, running and evaluating experiments, and building software. Prior to her current role, Karen worked at the UK’s Financial Conduct Authority (FCA), in the role of Deputy Chief Economist and Head of Economics, Data science, and Behavioural science. Her FCA teams worked across the regulator’s mandate from horizon scanning, through to harm diagnosis, policy design, ex post impact evaluation, and developing the FCA’s strategic approach to AI and digital markets. Prior to the FCA, Karen worked for McKinsey & Company, serving clients across the US and Europe on a wide range of strategic issues, and helping build out QuantumBlack, McKinsey’s AI division. Karen is an Honorary Professor in economics at the University of Nottingham and holds a PhD in economics from Oxford University, where she was also a Post-doctoral Research Fellow and Lecturer in Economics.